If the low menstrual flow is caused by internal obstruction of blood stasis, this condition can be treated with motherwort granules, which may increase a woman’s menstrual flow. If a patient has a low menstrual flow, it is important to find out what is causing the decrease in menstrual flow. First of all, blood should be drawn to check the blood HCG value. If the blood HCG value does not rise, further gynecological ultrasound as well as sex hormone six tests are needed. If the low menstrual flow is caused by the absence of ovulation, the patient can be treated with progestin withdrawal bleeding during the second half of the menstrual period. If the decrease in menstrual flow is caused by damage to the endometrium, supplementation with high doses of Tegretol is needed to stimulate endometrial growth.